-
Notifications
You must be signed in to change notification settings - Fork 140
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Adding kops.sh script to automate kops creation
- Loading branch information
Showing
2 changed files
with
381 additions
and
2 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,379 @@ | ||
| #!/bin/bash -e | ||
|
|
||
| # create_kops - A script to create a Kops Kubernetes cluster | ||
|
|
||
| ########################################## | ||
| ##### Constants | ||
| ########################################## | ||
|
|
||
| TIME_NOW=$(date +"%x %r %Z") | ||
| KOPS_VERSION="1.11." | ||
|
|
||
| ########################################## | ||
| ##### Functions | ||
| ########################################## | ||
|
|
||
| usage() | ||
| { | ||
| echo "usage: create_kops [[[-n kops_name ] ] | [-h]]" | ||
| } | ||
|
|
||
| check_kops_version() | ||
| { | ||
| command=$(kops version) | ||
|
|
||
| if [[ "${command}" == *"${KOPS_VERSION}"* ]]; then | ||
| echo "[INFO] Kops version: ${command}" | ||
| else | ||
| echo "[ERROR] Kops version expected: ${KOPS_VERSION}" | ||
| echo "Got: ${command}" | ||
| exit 1 | ||
| fi | ||
| } | ||
|
|
||
| create() | ||
| { | ||
| # Checks | ||
| VALUES_FILE_PATH="./clusters/${kops_name}/values.yaml" | ||
| TEMPLATE_FILE_PATH="./template/cluster.yml" | ||
|
|
||
| if [ ! -f ${VALUES_FILE_PATH} ]; then | ||
| echo "File does not exist: ${VALUES_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| if [ ! -f ${TEMPLATE_FILE_PATH} ]; then | ||
| echo "File does not exist: ${TEMPLATE_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| kops_state_store=s3://$(cat ${VALUES_FILE_PATH} | grep "s3BucketName: " | awk '{print $2}' | tr -d '[:space:]') | ||
| export KOPS_STATE_STORE=${kops_state_store} | ||
| echo "[INFO] Setting KOPS_STATE_STORE: ${kops_state_store}" | ||
|
|
||
| if [ "${dry_run}" == "false" ]; then | ||
| echo "[INFO] Not a dry run" | ||
| echo "[INFO] Templating out" | ||
| kops toolbox template --template ${TEMPLATE_FILE_PATH} --values ${VALUES_FILE_PATH} > ./kops-templated-${kops_name}.yaml | ||
| cat kops-templated-${kops_name}.yaml | ||
|
|
||
| echo "[INFO] Creating the cluster" | ||
| kops create -f ./kops-templated-${kops_name}.yaml | ||
|
|
||
| dns_zone=$(cat ${VALUES_FILE_PATH} | grep "dnsZone: " | awk '{print $2}' | tr -d '[:space:]') | ||
| cluster_name=$(cat ${VALUES_FILE_PATH} | grep "kopsName: " | awk '{print $2}' | tr -d '[:space:]').${dns_zone} | ||
|
|
||
| ssh-keygen -t rsa -b 4096 -C "[email protected]" -f ./ssh-keys/id_rsa_kops_script -q -N "" | ||
|
|
||
| echo "[INFO] Setting to generic ssh pub key" | ||
| kops create secret --name ${cluster_name} sshpublickey admin -i ./ssh-keys/id_rsa_kops_script.pub | ||
|
|
||
| echo "[INFO] Applying cluster to AWS" | ||
| kops --name ${cluster_name} update cluster --yes | ||
|
|
||
| echo "[INFO] Get instance groups" | ||
| kops --name ${cluster_name} get ig | ||
|
|
||
| else | ||
| echo "[INFO] Dry run" | ||
| kops toolbox template --template ${TEMPLATE_FILE_PATH} --values ${VALUES_FILE_PATH} | ||
| fi | ||
|
|
||
| echo "Finished" | ||
|
|
||
| } | ||
|
|
||
| read() | ||
| { | ||
| # Checks | ||
| VALUES_FILE_PATH="./clusters/${kops_name}/values.yaml" | ||
| TEMPLATE_FILE_PATH="./template/cluster.yml" | ||
|
|
||
| if [ ! -f ${VALUES_FILE_PATH} ]; then | ||
| echo "File does not exist: ${VALUES_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| if [ ! -f ${TEMPLATE_FILE_PATH} ]; then | ||
| echo "File does not exist: ${TEMPLATE_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| kops_state_store=s3://$(cat ${VALUES_FILE_PATH} | grep "s3BucketName: " | awk '{print $2}' | tr -d '[:space:]') | ||
| export KOPS_STATE_STORE=${kops_state_store} | ||
| echo "[INFO] Setting KOPS_STATE_STORE: ${kops_state_store}" | ||
|
|
||
| dns_zone=$(cat ${VALUES_FILE_PATH} | grep "dnsZone: " | awk '{print $2}' | tr -d '[:space:]') | ||
| cluster_name=$(cat ${VALUES_FILE_PATH} | grep "kopsName: " | awk '{print $2}' | tr -d '[:space:]').${dns_zone} | ||
|
|
||
| echo "[INFO] Get clusters" | ||
| kops --name ${cluster_name} get clusters | ||
|
|
||
| echo "[INFO] Get instance groups" | ||
| kops --name ${cluster_name} get ig | ||
| } | ||
|
|
||
| template() | ||
| { | ||
| # Checks | ||
| VALUES_FILE_PATH="./clusters/${kops_name}/values.yaml" | ||
| TEMPLATE_FILE_PATH="./template/cluster.yml" | ||
|
|
||
| if [ ! -f ${VALUES_FILE_PATH} ]; then | ||
| echo "File does not exist: ${VALUES_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| if [ ! -f ${TEMPLATE_FILE_PATH} ]; then | ||
| echo "File does not exist: ${TEMPLATE_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| kops_state_store=s3://$(cat ${VALUES_FILE_PATH} | grep "s3BucketName: " | awk '{print $2}' | tr -d '[:space:]') | ||
| export KOPS_STATE_STORE=${kops_state_store} | ||
| echo "[INFO] Setting KOPS_STATE_STORE: ${kops_state_store}" | ||
|
|
||
| echo "[INFO] Dry run" | ||
| kops toolbox template --template ${TEMPLATE_FILE_PATH} --values ${VALUES_FILE_PATH} | ||
|
|
||
| echo "Finished" | ||
| } | ||
|
|
||
| update() | ||
| { | ||
| # cluster_name=$(kops get clusters | grep "^${kops_name}\." | awk '{print $1}') | ||
| # echo "[INFO] Updating cluster named: ${cluster_name}" | ||
|
|
||
| # Checks | ||
| VALUES_FILE_PATH="./clusters/${kops_name}/values.yaml" | ||
| TEMPLATE_FILE_PATH="./template/cluster.yml" | ||
|
|
||
| if [ ! -f ${VALUES_FILE_PATH} ]; then | ||
| echo "File does not exist: ${VALUES_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| if [ ! -f ${TEMPLATE_FILE_PATH} ]; then | ||
| echo "File does not exist: ${TEMPLATE_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| kops_state_store=s3://$(cat ${VALUES_FILE_PATH} | grep "s3BucketName: " | awk '{print $2}' | tr -d '[:space:]') | ||
| export KOPS_STATE_STORE=${kops_state_store} | ||
| echo "[INFO] Setting KOPS_STATE_STORE: ${kops_state_store}" | ||
|
|
||
| if [ "${dry_run}" == "false" ]; then | ||
| echo "[INFO] Not a dry run" | ||
| echo "[INFO] Templating out" | ||
| kops toolbox template --template ${TEMPLATE_FILE_PATH} --values ${VALUES_FILE_PATH} > ./kops-templated-${kops_name}.yaml | ||
| cat kops-templated-${kops_name}.yaml | ||
|
|
||
| dns_zone=$(cat ${VALUES_FILE_PATH} | grep "dnsZone: " | awk '{print $2}' | tr -d '[:space:]') | ||
| cluster_name=$(cat ${VALUES_FILE_PATH} | grep "kopsName: " | awk '{print $2}' | tr -d '[:space:]').${dns_zone} | ||
| echo "[INFO] Updating cluster named: ${cluster_name}" | ||
|
|
||
| echo "[INFO] Updating the cluster" | ||
| #--force is required so that any resources (ie new instance groups) are created; | ||
| # without this flag the call fails with a resource DNE error | ||
| kops --name ${cluster_name} replace -f ./kops-templated-${kops_name}.yaml --force | ||
|
|
||
| echo "[INFO] Applying cluster to AWS" | ||
| kops --name ${cluster_name} update cluster --yes | ||
|
|
||
| echo "[INFO] Cluster instance groups:" | ||
| kops --name ${cluster_name} get ig | ||
|
|
||
| else | ||
| echo "[INFO] Dry run" | ||
| echo "[INFO] Templating out" | ||
| kops toolbox template --template ${TEMPLATE_FILE_PATH} --values ${VALUES_FILE_PATH} > ./kops-templated-${kops_name}.yaml | ||
| cat kops-templated-${kops_name}.yaml | ||
|
|
||
| dns_zone=$(cat ${VALUES_FILE_PATH} | grep "dnsZone: " | awk '{print $2}' | tr -d '[:space:]') | ||
| cluster_name=$(cat ${VALUES_FILE_PATH} | grep "kopsName: " | awk '{print $2}' | tr -d '[:space:]').${dns_zone} | ||
| echo "[INFO] Updating cluster named: ${cluster_name}" | ||
|
|
||
| echo "[INFO] Updating the cluster" | ||
| #--force is required so that any resources (ie new instance groups) are created; | ||
| # without this flag the call fails with a resource DNE error | ||
| kops --name ${cluster_name} replace -f ./kops-templated-${kops_name}.yaml --force | ||
|
|
||
| echo "[INFO] Applying cluster to AWS" | ||
| kops --name ${cluster_name} update cluster | ||
|
|
||
| echo "[INFO] Cluster instance groups:" | ||
| kops --name ${cluster_name} get ig | ||
| fi | ||
|
|
||
| echo "Finished" | ||
| } | ||
|
|
||
| rolling_update() | ||
| { | ||
| # Checks | ||
| VALUES_FILE_PATH="./clusters/${kops_name}/values.yaml" | ||
| TEMPLATE_FILE_PATH="./template/cluster.yml" | ||
|
|
||
| if [ ! -f ${VALUES_FILE_PATH} ]; then | ||
| echo "File does not exist: ${VALUES_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| if [ ! -f ${TEMPLATE_FILE_PATH} ]; then | ||
| echo "File does not exist: ${TEMPLATE_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| kops_state_store=s3://$(cat ${VALUES_FILE_PATH} | grep "s3BucketName: " | awk '{print $2}' | tr -d '[:space:]') | ||
| export KOPS_STATE_STORE=${kops_state_store} | ||
| echo "[INFO] Setting KOPS_STATE_STORE: ${kops_state_store}" | ||
|
|
||
| USE_CLOUD_ONLY_FLAG="" | ||
| if [ "${cloudonly}" == "true" ]; then | ||
| echo "[INFO] Using --cloudonly flag. This will not drain the nodes first. It will simply terminate the nodes." | ||
| USE_CLOUD_ONLY_FLAG="--cloudonly" | ||
| fi | ||
|
|
||
| if [ "${dry_run}" == "false" ]; then | ||
| echo "[INFO] Not a dry run" | ||
|
|
||
| dns_zone=$(cat ${VALUES_FILE_PATH} | grep "dnsZone: " | awk '{print $2}' | tr -d '[:space:]') | ||
| cluster_name=$(cat ${VALUES_FILE_PATH} | grep "kopsName: " | awk '{print $2}' | tr -d '[:space:]').${dns_zone} | ||
| echo "[INFO] Rolling cluster named: ${cluster_name}" | ||
|
|
||
| kops --name ${cluster_name} rolling-update cluster --yes ${USE_CLOUD_ONLY_FLAG} | ||
|
|
||
| echo "[INFO] rolling-update cluster:" | ||
| kops --name ${cluster_name} rolling-update cluster ${USE_CLOUD_ONLY_FLAG} | ||
|
|
||
| else | ||
| echo "[INFO] Dry run" | ||
|
|
||
| dns_zone=$(cat ${VALUES_FILE_PATH} | grep "dnsZone: " | awk '{print $2}' | tr -d '[:space:]') | ||
| cluster_name=$(cat ${VALUES_FILE_PATH} | grep "kopsName: " | awk '{print $2}' | tr -d '[:space:]').${dns_zone} | ||
| echo "[INFO] Rolling cluster named: ${cluster_name}" | ||
|
|
||
| kops --name ${cluster_name} rolling-update cluster ${USE_CLOUD_ONLY_FLAG} | ||
|
|
||
| echo "[INFO] rolling-update cluster:" | ||
| kops --name ${cluster_name} rolling-update cluster ${USE_CLOUD_ONLY_FLAG} | ||
| fi | ||
|
|
||
| echo "Finished" | ||
| } | ||
|
|
||
| delete() | ||
| { | ||
| # Checks | ||
| VALUES_FILE_PATH="./clusters/${kops_name}/values.yaml" | ||
| TEMPLATE_FILE_PATH="./template/cluster.yml" | ||
|
|
||
| if [ ! -f ${VALUES_FILE_PATH} ]; then | ||
| echo "File does not exist: ${VALUES_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| if [ ! -f ${TEMPLATE_FILE_PATH} ]; then | ||
| echo "File does not exist: ${TEMPLATE_FILE_PATH}" | ||
| exit 1 | ||
| fi | ||
|
|
||
| kops_state_store=s3://$(cat ${VALUES_FILE_PATH} | grep "s3BucketName: " | awk '{print $2}' | tr -d '[:space:]') | ||
| export KOPS_STATE_STORE=${kops_state_store} | ||
| echo "[INFO] Setting KOPS_STATE_STORE: ${kops_state_store}" | ||
|
|
||
| dns_zone=$(cat ${VALUES_FILE_PATH} | grep "dnsZone: " | awk '{print $2}' | tr -d '[:space:]') | ||
| cluster_name=$(cat ${VALUES_FILE_PATH} | grep "kopsName: " | awk '{print $2}' | tr -d '[:space:]').${dns_zone} | ||
| echo "[INFO] Deleting cluster named: ${cluster_name}" | ||
|
|
||
| if [ "${dry_run}" == "false" ]; then | ||
| echo "[INFO] Not a dry run" | ||
|
|
||
| kops --name ${cluster_name} delete cluster --yes | ||
|
|
||
| else | ||
| echo "[INFO] Dry run" | ||
| kops --name ${cluster_name} delete cluster | ||
| fi | ||
| } | ||
|
|
||
|
|
||
| ########################################## | ||
| ##### Main | ||
| ########################################## | ||
|
|
||
| kops_name="none" | ||
| dry_run="true" | ||
| create="false" | ||
| read="false" | ||
| update="false" | ||
| delete="false" | ||
| rolling_update="false" | ||
| cloudonly="false" | ||
|
|
||
| while [ "$1" != "" ]; do | ||
| case $1 in | ||
| -n | --name ) shift | ||
| kops_name=$1 | ||
| ;; | ||
| -d | --dry-run ) shift | ||
| dry_run=$1 | ||
| ;; | ||
| -c | --create ) shift | ||
| create=true | ||
| ;; | ||
| -r | --read ) shift | ||
| read=true | ||
| ;; | ||
| -u | --update ) shift | ||
| update=true | ||
| ;; | ||
| -ru | --rolling-update ) shift | ||
| rolling_update=true | ||
| ;; | ||
| -co | --cloudonly ) shift | ||
| cloudonly=true | ||
| ;; | ||
| -t | --template ) shift | ||
| template=true | ||
| ;; | ||
| -x | --delete ) shift | ||
| delete=true | ||
| ;; | ||
| -h | --help ) usage | ||
| exit | ||
| ;; | ||
| * ) usage | ||
| exit 1 | ||
| esac | ||
| shift | ||
| done | ||
|
|
||
| echo "[INFO] dry_run = ${dry_run}" | ||
| echo "[INFO] kops_name = $kops_name" | ||
|
|
||
| check_kops_version | ||
|
|
||
| if [ "${create}" == "true" ]; then | ||
| create $kops_name | ||
| fi | ||
|
|
||
| if [ "${read}" == "true" ]; then | ||
| read $kops_name | ||
| fi | ||
|
|
||
| if [ "${update}" == "true" ]; then | ||
| update $kops_name | ||
| fi | ||
|
|
||
| if [ "${rolling_update}" == "true" ]; then | ||
| rolling_update $kops_name | ||
| fi | ||
|
|
||
| if [ "${template}" == "true" ]; then | ||
| template $kops_name | ||
| fi | ||
|
|
||
| if [ "${delete}" == "true" ]; then | ||
| delete $kops_name | ||
| fi |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters